Question 364842
{{{graph(300,300,-4,4,-4,4,0,2x^4-5x^3-2x^2+10x-4)}}}
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Looks like you have some possible candidates.
Verify they are zeros by plugging them into the equation.
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Once you have a zero, you can divide the original polynomial by the factor.
As an example, if {{{x=12}}} was a zero , then {{{x-12}}} is a factor of the polynomial and I could use polynomial long division to reduce the degree of the polynomial by 1.